地质条件对回采工作面顶板稳定性的影响  

Composition and Structure of Geological Condition Influencing to Stability of Work Face Roof

作　　者：刘增勇[1] 

机构地区：[1]鸡西矿业集团公司杏花煤矿,黑龙江鸡西158173

出　　处：《煤炭技术》2006年第11期46-47,共2页Coal Technology

摘　　要：根据岩石单向抗压强度以及裂隙发育密度和分层厚度,对煤直接顶板稳定性进行分析。煤层直接顶板稳定程度的差异,其根本原因在于地质条件的差异,煤层顶板的岩性,是影响煤层顶板稳定性的重要因素。深入研究煤层顶板的地质条件,是管理好回采工作面煤层顶板的关键。According to compressive strength of the rock, the crack growth density, and layer thickness, the stalibity of the coal bed immediate roof is analyzed. The stability degree of the coal bed immediate roof is different becaues of the difference of geological condition. The lithologic characte of the coal bed roof is an important factor, which affects the stability of the coal bed immediate roof. As a result, it is a key step that we should research coal bed roof geology in a penetrating way in order to effectively manage coal bed roof of stope.

关 键 词：地质条件 构造 煤层顶板 稳定性 

分 类 号：TD327.2[矿业工程—矿井建设]